US1103267A - Composition containing sulfite-waste and shellac. - Google Patents

Description

musrfulu is MICHAEL F. CQUGELIN, OI STOUG-I-ITON, IVIASSAL'YH'USETTS, ASSlIQ- NGBI TO Fill/ED135916 Ji l.

CUMFOSITION CONTAINING- SULFITE-WASTIF; AND SHEIJQAfl 1,1@3,2fi7. Specification of No Drawing.

To all whom it may eonce'm:

Be 1t known that I, MICHAEL F. Cows LIN, a elk-men of the Umted States, resulmg at 'Stought-on, in the county of Norfolk 'a'ncl State of Massachusetts, havs invented Cation.

Aqueous solut'lsnsj of shellac am used in many industries. The slimline substancss determining the solutisn f the shellac in the water are usually bomx, or ammonia, or mixtures of born and ammonia, but soda or potash, Or the alkaline salts of any of the alkali metals, including such salts of ammou'ia, may be usecl for dissolving the shellac, I have discovsred that Waste sulfite liquor, obtains/cl as a by-pmcluct of the mm ufacturs 0f pupez: pulp from W006i, or the residues derived from such liquor by evaporation, may with advantage be incorps -xat'ed with such alkaline aquesus shellac 50 luiiions, The' mixture-- 0% the two substances lizfsolutiony when subsequencl :lrriecl furgfiislies u val-nish film of super-101* lustsuanrl halving. u. fiezgibillty supsriou ts that, of s fi'lm ,00mposeof sltllsr of the mu let 0pm pouents singly. By major csmponents I mean shellac and aste sulfits liqusrs, s2" tlw solid sonstituents m2 the latter. If the saltlion"containing the: shellac andsulfite li um be-usedifus s sizing material rather than as s varnish,- the incresssu flexibility due to figs mixture sf the two is vuntugs,

' The COHlPOSltlOH maybe preparsd by various methods, .lf-er-exampls it may be; made "frsqusmly an by adding the alkaline water solution. at one of the major components to u similarly slkalme aqueous SUllhlOn of Ens sther com ponent; or the shellac may be (l'iSSOlVECl clarectly 1n*tl1e sulfi te liqusr previously rendersd ulkal'me; or a nemrallzed solutmn of Letters Pu'lve ilmsl July 141,

Application filed February 2, 1914. Serial N0. ilwjl lfr.

that other means may be used to secure the simultaneous :rssuancs 0-1:"? shsllac, sulfits waste, water and ullmfi us by adding in shellac uml sulfiis liqunr a suitable 131 ;011:01 Lion of alkali; or dry shellac mul dried rssulus of sulfile liqum: may be llssulvsd in water in presence of a sulficient pl 'u-pmrtiun of alkali.

There is of course no necessity fur making the sulfits liquor or its e' iupmrulsd product alkiullns, provided there lur'susugh alkali present in the shellac sslutiun 10 neutralize any acid wlsting in the sulfiiis liquor or in the drietl residue there-f.

The following is citsd as an illusxfimlivs example; (1} Ten 0f Was-lie sulfiizs liquor containing ubsul; ten per csnfc. of solids is neutralized by ammonia. fins part of dry shellac is (llSSOlVBCl in Water With the aid of ammqnia. The solutions and (2) are then poured tugetllsr aucl tl1o1.-- oughly mixed, The solutions may be used in equal *mlumes 01' either may prspouderats in the mixture.

To prepare a. clry sizing; ru-fuasrial comprising shellac and asulfitd rsstlrlue in intimsts combinutisn, it i as my merely to evapomis cm'nbi'nscl ti us; and such flrisd prcduct may be auxin 'clissnlvecl, to prepare a varnish m s solution, by simple treatment with dilute alkali.

I claim l. The lisl'sln-rlsscrlbecl compnsiilon of matter containing shellac fills solid c011- stituenls of 'wuslie sulfiae liquor.

2. The herein-escribecl cnm'pssitlon of matter cuntaiuing shellac uncl the solid coustljtuents 0% Waste sulfiis liquor in solusinn in a suitable alkaline. medium.

The herein-described composition of matter ccntuiuiug; shellac and the snlid (503% 'stitue-nfis 0f vWaste, sulflts liquor, in sslution a suitabls mszlium containing ammsniu,

lIn testimnny w'lmrenf I allix my signature in presence of two Witnesses.

MICHAEL F. UOUGHLIN. W'tnssses HARE? SHOW,

Lam, "ll". Wi es-ms.